I call it a tool because I feel it is one, but apart from that what an electric toothbrush like this one can do for you is great, after only one month of using it I could already see, and feel the difference, my teeth are whiter, and my gums stronger, the brush moves at an incredible speed, helping you double the results you get from the effort you put in. Highly recommend it, not expensive and can last a life time, and all family can use a single one as the heads have little colored circles in different color, so anyone can have is own, place it on, use it, and remove.